The researchers studied 34 different types of rice to see which traits affect the yield the most. They looked at things like plant height, number of tillers, and grain yield. They found that more tillers, spikelets, and fertile grains per plant led to higher grain yield. On the other hand, taller plants and longer flowering times were linked to lower grain yield. The amount of grain produced per plant and the harvest index had the biggest positive impact on grain yield. This information can help in choosing the best rice types for higher yields and improving rice crops.